Breaking change: migrate template builder to SuperDoc v1 (#24)

* feat!: migrating template builder to SuperDoc v1

BREAKING CHANGE:
- Upgraded `superdoc` to version `1.5.0-next.7` in both `package.json` and `pnpm-lock.yaml`.
- Updated React and React DOM versions to `19.2.3`.
- Enhanced performance by using `useMemo` for toolbar settings and scheduling callbacks with `queueMicrotask` to avoid blocking rendering.
- Various dependency updates in `pnpm-lock.yaml` for improved compatibility and security.

* chore: update superdoc version to 1.5.0 in package.json and pnpm-lock.yaml

* refactor: streamline field update callbacks in SuperDocTemplateBuilder

Author: andrii-harbour

demo/package.json

@@ -11,7 +11,7 @@
         "@superdoc-dev/template-builder": "link:../.",
         "react": "^19.2.0",
         "react-dom": "^19.2.0",
-        "superdoc": "^0.35.3"
+        "superdoc": "1.5.0"
     },
     "devDependencies": {
         "@types/react": "^19.2.6",